Datasheet for ADE7757A:
- Manufacturer Part Number : ADE7757A
- Manufacturer : AD
- Description : Single Phase Energy Metering IC with Integrated Oscillator and Reverse Power Indication
- Series : ADE7757A
- Reference Price : USD 0
- Our Price : We have a better price, contact us by email
- Product Type : Integrated/Special Purpose A/D Converters
- Function : Energy Metering ICs
- Current Suggest : Production
- Status : Obsolete
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : ADE7757A
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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- Exceeds IEC62053-21
- Less than 0.1% Active Energy Error Over Dynamic Range of 500:1
- Active Energy Measurement
- High Frequency Pulse Output
- Current sensor interface for current transformers or shunts
- On-chip Temperature Sensor and Voltage Reference (2.45 V)
- Low Power (20 mW typical)
- Reverse Power Indication (REVP)
The ADE7757A (AD71056) is an accurate electrical energy measurement integrated circuit. It is a pin reduction version of ADE7755 with an enhancement of a precise oscillator circuit that serves as a clock source to the chip. The ADE7757A eliminates the cost of an external crystal or resonator, thus reducing the overall cost of a meter built with this IC. The chip directly interfaces with shunt resistor.
The ADE7757A provides instantaneous and average real power based on line current and voltage. The part specifications surpass the accuracy requirements as quoted in the IEC61036 standard. The only analog circuitry used in the ADE7757A is in the ADCs and reference circuit. All other signal processing (e.g., multiplication and filtering) is carried out in the digital domain. This approach provides superior stability and accuracy over extremes in environmental conditions and over time.
The small analog input full-scale allows the chip to interface to low value shunt resistances without losing dynamic range. The ADE7757A is available in 16-lead SOIC narrow-body package.
The Application Note AN-679 can be used as a basis for a description of an IEC62053-21 low cost, watt-hour meter reference design.
NOTE: For polyphase system designs, the ADE7752A is recommended.
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.